ONLINE sleuths believe they may have found a secret Nazi bunker after spotting a "door" on Google Maps. The supposed door was spotted in rural Antarctica - where some conspiracy theorists believe Hitler survived the end of the Second World War. 7 The new discovery has led many to revisit a popular WW2 conspiracy theory Credit: Getty 7 The square shaped hole was spotted by an eagle-eyed internet user Credit: Kennedy Newsand Media The baffling image from shows a shadowed, square-shaped mark hidden in a vast Antarctic ice sheet. A Facebook user shared a screenshot of the alleged door in...